. How to control American foulbrood. Bees; Foul brood, American. 12 Wisconsin Bulletin 333 Where the honey from these cells is fed to the bees, a new infection is started which soon spreads to other parts of the brood nest. t,u a In an experiment made in 1919, eight sets of brood free" dry extracting combs taken from colonies diseased with American foulbrood were given to eight two-pound packages of bees. Sugar syrup was fed to these so that they had abund- ance of stores up to the time of the honey flow. In six of these, disease did not appear at all during the sea- son. In two others th
. How to control American foulbrood. Bees; Foul brood, American. 12 Wisconsin Bulletin 333 Where the honey from these cells is fed to the bees, a new infection is started which soon spreads to other parts of the brood nest. t,u a In an experiment made in 1919, eight sets of brood free" dry extracting combs taken from colonies diseased with American foulbrood were given to eight two-pound packages of bees. Sugar syrup was fed to these so that they had abund- ance of stores up to the time of the honey flow. In six of these, disease did not appear at all during the sea- son. In two others the disease appeared with the first set of j brood and continued to increase until the colonies were treated in July. While only two of the colonies became diseased, the; amount of disease carried was 25 per cent. Such a high per-: centage makes the use of dry extracting combs very FIG. 4.—AMERICAN FOULBROOD .CAUSED A HEAVY LOSS IN THIS AJ»IART In 1918 an average of 187 pounds of honey per colony was produced here. In 1919 nearly every colony was diseased and almost cleaned out due to the introduction of the disease in ^he fall of 1918. Five sets of frames with foundation which had been worked on but slightly or not at all were also taken from diseased colonies of the year before and given to package bees. Siigar syrup was fed to these colonies until the honey flow began. No dis- ease appeared in any of these colonies., Does Scorching Insure Complete Disinfection? Bees do not leave honey scattered about on the walls of the hive or on frames and will immediately gather up the smallest. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wilson, Harley Frost, 1883-. Madison, Agricultural Experiment Station, University of Wisconsin
Size: 1979px × 1262px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjectbees, bookyear1921
